Center-bolster for six-wheel car-trucks.



C. T. WESTLAKB. .CENTER BoLsTBR FOR SIX WHEEL' CAR Tuoxs.

APPLIOATION FILED AUG.11,.1913. f

Patented July 7, 1914 Tll.' NORRIS PETERS CO.. PHOTD-LITHO1. WASHINGTON. D4 C.

Tolall @07mm vit may concern? v Be 1t known that I, CHARLES UNITED STATES PATENT G HARLEST. WESTLAKE, or 's'.r. LOUIS, MISSOURI, AssIGNon fro DOUBLE no DY no LSTER i COMPANY, O F ST, LOUIS, MISSOURI, OORPORATION OF NEWJERSEY T. Was'r- .l IiAK E a citizen'f--of-the United States, .resid-l lng at city. of St. Louis, State of Missouri,

haveinvented acertain new and useful Improvement in Center-'Bolsters for Six-Wheel Car-Trucks, of which the followingis a full, clear, and exact description, such as will en? able others skilled in the art to which it ap- 10.

pertains to make and use the Same, reference belnghad to the accon'ipanying drawings,

forming part ot' this speciticatimi, in which- Figure lis a plan View of a c enterbolster of myimproved construction. Fig. 2 isa' sectional view taken approximately on the Fig. 3 1s a section taken My invention relates l generally to car trucks, and 'more particularly to the center bolster for six wheel trucks ofy the type Ishown in Patent No. 1,054,697'.

In six Wheel trucks having a one piece lcenter bolster, the latter is usually formed so as lto clear and accommodate other parts of the truck, and thus the end members'of the center bolster or those partswhich combine vwith the side frames `or Wheel pieces of the truck are subjected to eccentric stresses iyhichjare pred'ucedfby the vertical load carried by the center bolster While other parts..

', 0f` the center bolster are subjected to torysionalstresses.; To veffectually resist these eccentric andv torsional stresses I propose to produce a center bolster which is formed in one piece preferably by casting, and parts of 4which bolster are'fornied and shaped in cross Section lso ast'o utilize to the best ad- Vantage thevstrength vof metal of which the bolster is Vconstructed in resisting service y i Weight.

i `morefullyfdescribed and claimed.

vtion andv arrangement 'ofparts hereinaffterl lstrains and stresses, thus providing a bol' ster which has the requisite strength, and at the same time is comparatively light `in y To theabovepurposes my invention consists 1n certain novel features of construc- My improvcdcenter bolster, -a-s showin, is"

i formed' in' a 'single piecepreferably .by cast` ing, andthe main bodyportlon of lsaidvbol- 1 'ster ycoi'r'iprises a p'air'of lo'iigitudinallydis-l j CENTER-BOLSTER FOR SIX-WHEEIiCAR-T'RUCKS.

specification of Letters Patent. Application filed August 1&1, 1913 Serial No. 784,246.

i Patented Jill) l 151,1 'livhich are preferably ich cross Section wlth their` horizontal flanges inwardly presented. The central portions ofthe `mem-bers lOarel lSlightly' arched-Tas l` designatedby 12 in orderfto accommodatef' the centerl axle of the' truck vand `ftnimed von or fixed to these arched portions are center vv bearing members 13. Formed integral with the central portions of the vmembers l0," and transversely arranged between th'elsaine vis a horizontally disposed 'platev 14,5'the cen# tral portion of which is slightly depressed as designated by 15 to form a center-bear#- Aing, and formed integralvitl the centrali 'f portion of said plate in the center of said center' bearing 1s a vertically fdispose'd 'cyforated to receive a kind in. f

lindrical boss 1G which is preferably per- *Fornied integral with the member-S110y and 17 which areadapted -tofstraddle the center' plate lll and depending from said,.plate` y is a pair of 'vertically disposed parallelwebsv the lower portions of these Webs;v `are'horl.-l

-zontally disposed anges'18 which are-outwardly presented, and which'join iyithwthe.

inwardlyl presented bottom flanges of the members 10.v f f' Arms 19 which are in cross sectionfproject outwardly from the corners f the rectangular frameforrnedjby the members 10 and 11; and tliefinnerve'nds "of said arms merge with"athew-end ,portions preferablysoif-shape of vsaid members 10and 1 1.: Portionen fthe inner Vert-ical Walls. of thearms-1Qareinset as designated by 119n toform ,recessesor spaces'for brake,.l iead clearancei jhusvt'he portions 19 of the` center bolster; infnowise interfere :with the-free op eration `off t he brake beams, and carried ,parts `which are positioned beneath the bolster. Eprrned n'- tegral withfthe outer ends, Of'the's'e arrns19 are box-shaped v,members .-20 which. v`occupy positions-between suitably :arranged'yertical guideson thegsdelframes-or Wheel pieces- '.A:

of vthe xtruck; .frame and the undersijdes of' lthese'members .2Q are adapt ed'tofreceive and `rest .uponsprings which are' 'carried side frames .or 4.Wheel pieces.

fon the side frames;

'ivo

ducing a construction which vis compara-` tivelyflight in weight, and atthe same time has"V ample strength to resist vsuch stresses. In the main 'body portion of the bolster the members 10 and 11 Aare shaped in cross section so as to utilize tof-best ,advantage the strengthof-metal to Which'said-parts are composed, and thus a one piecev 'centerbolster is produced, which iscomparatively light in .weightg has great strength and rigidity, and Which ,can be readily formed in a' vsingle piece'fbyfcasting. It'fwill be readily` understood that minor changes/ginlthe Isize,` ,1 ";torm ,an d f construction of thefvarious parts of my improyed l cent-er bolster'fr sixvheel car trucks,'canjbe'made andsub'stituted for those herein shown and described, without departing from the spirit of-my invention, the scope of which is lset forth in the appended claims.

' I claim:

1. A' center bolster for six .'whe'el trucks' comprising a'rectangular frame the central portion'pf which is 4arched to accommodate the center axle of the truck, and arms proj'ectingy laterally fromfthe corners of said lframe, which arms 4are box-shape in cross section,'.l'='and the outer ends of which are fj adapted to coperate with the Wheel pieces fof the truck frame. 2. A bolster for-six wheel trucks comprisingfa-body formed of pairs of flanged side and -end members the .central portions of which side members arearched to accommodate the center axle of the truck, andarms integral with and projecting outwardly from the ends of said body, which arms are box-shape in cross section. 3. A center bolster for sixwvheel trucks comprising a pair of longitudinally disposed'parallel flanged members the central portions of which members are arched to accommodate the center axle of the truck, a pair of transversely disposed parallel flanged members, and armsfintegral with and projecting outwardly fromV the end portions of said pairs of parallel members and which arms are box-'shape in cross section. 4'.- A center bolster l comprising a pair of longitudinally disposed members which are of I-beam shape in cross sect-ionthe central portion of which members cross section and arms projecting outwardly for fsix Wheel trucks.,l

are arched to accommodate the center axle the ends of said` from' the connected ends of said pairs' of members, which arms are box-shape in cross section. ,i

A center bolster for six Wheel truck frames cast in a single piece and comprising a rectangular frame, the sides of which are arched to accommodate the center axle 'of the truck, an rinverted U-shaped member connecting the arched portions ot the sides oi' said frame, arms projecting laterally from the corners of said frames, which arms are box-shape in cross section, and hollow' members integral With the outer ends of said arms, which hollow members coperate with the Wheel pieces of theftruclr'"frame,v

6. In a center bolster for six Wheel trucks,

va pair of longitudinally disposed-members,

the central portions of which are arched to accommodate the cente'r'axle ofthe truck, an inverted U-shaped member connecting the arched portions of said longitudinally disposed members', a pair of transversely disposed members uniting the `ends of said longitudinally disposed members, and .laterally projecting arms at the ends of said longitudinally disposed members, which arms are .box-shape in cross section.4

7 In a center bolster for six Wheel truc-ks, a pair of longitudinally disposed members,

the central portions of which are arched, av

pair of transversely disposed members uniting the ends of said longitudinally disposed members, laterally projecting arms at the ends of said longitudinally disposed members,` which arms are box-shape in cross section, 'and side bearing members on the.

arched portions of said longitudinally dis- 8. In a center bolster for six Wheel trucks, a pair of longitudinally disposed members, the central portions of which are arched, a pair of transversely disposed members uniting the ends of said longitudinally disposed members, laterally projecting arms at the ends of said longitudinallyv disposed mem-v bers, which. arms are box-shape in cross section, gral with and arranged between the central portions of said longitudinally disposed members and a center bearing on said last mentioned transversely disposed member.

9. In a center bolster for six Wheel trucks, a pair of -longitudinally disposed members, the central portions of which' are arched, a pair of transversely disposed members uniting the ends of said longitudinally disposed members', laterally 'projecting arms at the ends of said longitudinally disposed members, which arms are box-shape in cross section, a transversely disposed member integral with and arranged between vthe central portions of .said longitudinally disposed members, and side bearing members on thearched portions of said longitudinally disposed members. y

a transversely disposed member inte- 10. `A,center.bclster Ywheel Icarl trucks, formed .1n asingle piece and comprising a f r'a'rne,aceterfbearin ',thereo", reine, and

arms. projecting laterally," from said frame, which jar'nis'parecross "section, j i

11. y A fcentery bolster' for,- sixf..whee`l car trucks, formed in' ausingle Vpi'eceand com! prisingajrframe acenter .bearing thereon,

-side;bearings on said frame, arms projecting laterallyfrom the ends of said frame, which' arhisare box-shape in cross section, and'hollowmemberspn the ends of said arms, which hollowvv members are adapted to coperate with the side framesof the car truck.

12. A center bolster for six Wheel trucks comprising a frame having pside and end pieces, the central portions of the side pieces being arched to accommoday the center axle of the truck, side bearings on said yoxshaipe in M arched side pieces, a member connecting the arched portions of the side pieces, 'a center bearing on said vmember arms projecting latterally from the corners of said frames, which armsxare'box-shape in'cross section,

and are adapted to coperate with the Wheel ieces of the truck frame, and said arms belng 'provided with recesses which form brake head clearance spaces.

13. A center bolster for six Wheel trucks comprising a frame having side and end .ends of side' pieces, a memberconnectingifthe arched portions of the" side pieces, ajcenter'baring on saidmember, arms prdjecting*laterallyv from` the vcorners of lsaid* frames, whichl arms :are "box -shape iny cross sectio'ngfandare adapted to'coperate with the wheel'pieces of the truck frame, and the inner' walls of .portions of lsaid side members being 'arched to accommodate the center axleofthe'truck, side bearings formed on the arched portions of Esaid side members, arms integral with and projecting outwardly from the endsof said body, which arms are box-shape iin cross section, and said arms being provided v on their inner sides with recesses which form brake head clearance spaces. y l In testimony whereof I hereunto aiiix my signature in the presence of two witnesses,

this 30th day 'of July, 1913.

CHARLES T. wEsTLAKE.v y

Witnesses: HAL C. Bnmvninn, p

FRED H. 'BLANKENHORN pieces, the'central'poitionsoi thepieces 'bein' arched to .accommodatethe center axle.

ofv t e truck, 'side bearingson Isaid-archedy Disclaimer in` Leiters Patent No. 1,102,620.

" DISCLAIMER- 'CAR-Timone. Patent dated July 7 1914. Disclaimerifiled September 5, 191.4, by the assignee, Double Body Holster Company. Enters this disclaimer To those claim-s in said specification which are numbered 1, 2., 3, 5, 6, 7, 8, 9,

10, 11, an'l 12, and which are in the following Words, towit:

1. A' ce L ter bolster for six Wheel trucks comprising a rectangular frame the central portion of which is arched to accommodate tliefcenter-axle of the truck, and arms projecting laterally .from the corners of saidframe, which armsare box-shape in cross section, and the outer ends of which are adapted to coperate with the Wheel pieces of the truck frame.

2. A 'bolster for six IWheel trucks comprising a .body formed of pairslof anged side and end members the central portionsof which side members are arched to accommodate the center axle of the truck, vand arms integral with and l projecting outwardly from the ends of said body, which arms are box-shape in c ross section.

.3. A centerbolster for six wheel trucks comprising-a' pair of longitudinally disposed parallel flanged members the central portions of which members lare arched to accommodate the center axle of the truck, a. pair of transverselyr disposed parallel flanged members, and arms integral with and projecting outwardly from the end portions of said pairs ofparallel members and which arms are box-shape in cross section. 3 1

5. A center bolster for six wheel truck frames cast in a single piece and comprising a rectangular frame, the sides of which are arched to accommodate the center axle of the truck, an inverted U-sliaped member connecting the arched portions lof the sides oi'lsaid frame, arms projecting laterally fromthe corners of said rames, which arms arebox-shape in cross section, andhollow members integral with the outer ends of said arms, which hollowy members coperate with the wheel pieces of lthe truck frame.

6.- In a center bolster for six Wheel trucks,-a' pair of' longitudinally disposed members, the central portions of which are arched to accommodate the center axle of the truck, an inverted U- haped member connecting the arched portions of said longitudinally disposed members, 4a pair of transversely disposed members uniting the ends of said longitudinally disposed members, and laterally projecting armsk at the ends of said longitudinally disposed members, which arms are box-shape in cross lsection.

7. In a center bolster for six Wheel trucks, a pair of longitudinally disposed members, the central portions of which are arched. a pair of transversely disposed members uniting the ends of sai'd longitudinally disposed members, laterally projecting arms at the ends of said longitudinally disposed members, which arms are v box-shape in cross section, and side bearing members on the arched portions of said longitudinally disposed members. i v y 8. In a center bolster for six Wheel trucks, a pair of longitudinally disposed members, the central portions of which are arched, a pair of transversely disposed members uniting the ends oi' said longitudinally disposed members, laterally pro- -jecting arms at the ends of said longitudinally disposed members, which armsare box-shape in cross section, a transversely disposed iiieiiibei integral with and ariangedbetiveen the central portions of said longitudinally disposed members and a center bearing on said last mentioned transverselyedisposed member.

9J In a center bolster, for six wheel trucks, a pair of longitudinally disposed members, the central portions of uliich are arched, al pair of transversely disposed members uniting the ends of said llong igitudinally disposed members,'laterally projecting arms'at the ends of said longitudinally disposed members, which arms are box-shape in Cross Section, a transversely l'disposed member integral with and. arranged between the Central portions-of said longitudinally disposed members,

and side bearing members on the arched portions of said longitudinally disposed members.

10. A center bolster for six Wheel car trucks, formed in a single piece and j comprising a frame, a center bearingl thereon, sid-e bearingson the sides ofthe frame, and arms projecting laterally from the ends'of said frame, which arms are box-shape in cross section. i

11. Acenter bolster for six wheel car trucks, forinedfin a single piece and comprising a frame, a center bearing thereon, side bearings on said frame, arms projecting laterally from the ends of said frame, which arms are box-shape in cross section, and hollow members on the ends of said arms, which hollovv members are adapted to coperate with the side frames of the car truck.

l l2. Acenter bolster lfor six .wheel trucks comprising` a frame having side and end pieces, the' central portions of the side pieces being arched to accommodateV the center axle of thetruck, side bearings 'on said arched side piecesta member connecting the arched portions of the `side pieces, a center' bearing on said member l arms projecting laterally V from thefcorners of said frames, which arms are boxshape in cross section, and are' adapted to coperate with the wheel pieces 'of the truck frame, and said arms being provided with recesses which form brake head ...'glgarance spaces?. 

